例句與造句

1. Test method for density of plastics by the density - gradient technique
   密度梯度技術(shù)測定塑料密度的方法
2. Standard test method for density of plastics by the density - gradient technique
   用密度梯度法測定塑料密度的標準試驗方法
3. In this paper , we prepared 110x80mm ti : al2o3 crystal ( 11 stone ) by directional temperature gradient technique ( dtgt ) , choosed its top , middle part and bottom , and fabricated powder samples with carnelian mortar . then we observed and analyzed the surface of ti stone by using sem , and found it is ti that is the main component of the black thing on the surface of ti stone
   本文采用導(dǎo)向溫度梯度法制備了110 80mmti ： al _ 2o _ 3晶體(鈦寶石) ，并取其上部、中部、下部用瑪瑙研缽制成粉末樣品，用掃描電子顯微鏡對鈦寶石表面進行了觀察分析，結(jié)果表明鈦寶石表面上的黑色物質(zhì)的主要成分為鈦。
4. It's difficult to find gradient technique in a sentence. 用gradient technique造句挺難的